Dimmer Thermostat – a power-modulating thermostat

This thermostat is intended for keepers who heat enclosures with bulbs, heat mats or heating cables and want steadier temperature control than a standard on/off thermostat provides. It regulates the heater's output rather than cutting it in and out, which keeps the enclosure temperature closer to the set value.

Why it matters

• Instead of switching the heater fully on and off, it reduces the heater's power once the set temperature is reached and raises it again when the temperature drops, for example after the enclosure door is opened.
• The temperature is read by a waterproof probe on a 100 cm cable, so the sensor can be placed wherever the measurement is needed inside the enclosure.
• The set temperature is adjusted with a knob, covering 26 °C to 42 °C, and the setting is retained after a power outage, so the thermostat returns to the chosen temperature when power is restored.
• With a 400 W maximum load and 1 °C accuracy, it fits moderately sized heating setups and holds the temperature within a narrow band.

Specifications

• Model: RESUN DT400
• Maximum heating load: 400 W
• Temperature range: 26 °C to 42 °C
• Accuracy: 1 °C
• Power cable length: 100 cm
• Sensor cable length: 100 cm
• Probe: waterproof
• Weight: 0.3 kg

What it works with

The thermostat is designed for terrarium heating, with heat sources including bulbs, heat mats and heating cables. Its 400 W maximum load sets the upper limit for the connected heating devices, so the total wattage of the connected heater must not exceed this value.